4 files changed, 60 insertions, 38 deletions
diff --git a/sysdeps/generic/bits/byteswap.h b/sysdeps/generic/bits/byteswap.h
new file mode 100644
index 0000000000..9404cc452e
--- /dev/null
+++ b/sysdeps/generic/bits/byteswap.h
@@ -0,0 +1,43 @@
+/* Macros to swap the order of bytes in integer values.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H	1
+
+/* Swap bytes in 16 bit value.  */
+#define __bswap_16(x) \
+     ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
+
+/* Swap bytes in 32 bit value.  */
+#define __bswap_32(x) \
+     ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >>  8) |		      \
+      (((x) & 0x0000ff00) <<  8) | (((x) & 0x000000ff) << 24))
+
+#if defined __GNUC__ && __GNUC__ >= 2
+/* Swap bytes in 64 bit value.  */
+# define __bswap_64(x) \
+     ({ union { unsigned long long int __ll;				      \
+		unsigned long int __l[2]; } __v, __r;			      \
+        __v.__ll = (x);							      \
+	__r.__l[0] = __bswap_32 (__v.__l[1]);				      \
+	__r.__l[1] = __bswap_32 (__v.__l[0]);				      \
+	__r.__ll; })
+#endif
+
+#endif /* bits/byteswap.h */
diff --git a/sysdeps/generic/bits/htontoh.h b/sysdeps/generic/bits/htontoh.h
deleted file mode 100644
index fa4efed867..0000000000
--- a/sysdeps/generic/bits/htontoh.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* Copyright (C) 1997 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-#ifndef _NETINET_IN_H
-# error "Don't include this file directly, use <netinet/in.h>"
-#endif
-
-/* We cannot give generic optimized versions here.  */
diff --git a/sysdeps/generic/htonl.c b/sysdeps/generic/htonl.c
index d460d40f89..f433075a0f 100644
--- a/sysdeps/generic/htonl.c
+++ b/sysdeps/generic/htonl.c
@@ -19,17 +19,18 @@
 #include <netinet/in.h>
 
 #undef	htonl
+#undef	ntohl
 
 u_int32_t
-__htonl (x)
+htonl (x)
      u_int32_t x;
 {
-#if BYTE_ORDER == LITTLE_ENDIAN
-  x = (x << 24) | ((x & 0xff00) << 8) | ((x & 0xff0000) >> 8) | (x >> 24);
-#endif
-
+#if BYTE_ORDER == BIG_ENDIAN
   return x;
+#elif BYTE_ORDER == LITTLE_ENDIAN
+  return __bswap_32 (x);
+#else
+# error "What kind of system is this?"
+#endif
 }
-strong_alias (__htonl, __ntohl)
-weak_alias (__htonl, htonl)
-weak_alias (__ntohl, ntohl)
+weak_alias (htonl, ntohl)
diff --git a/sysdeps/generic/htons.c b/sysdeps/generic/htons.c
index a0a0e81adf..8914f74f2e 100644
--- a/sysdeps/generic/htons.c
+++ b/sysdeps/generic/htons.c
@@ -19,17 +19,18 @@
 #include <netinet/in.h>
 
 #undef	htons
+#undef	ntohs
 
 u_int16_t
 __htons (x)
      u_int16_t x;
 {
-#if BYTE_ORDER == LITTLE_ENDIAN
-  x = (x << 8) | (x >> 8);
-#endif
-
+#if BYTE_ORDER == BIG_ENDIAN
   return x;
+#elif BYTE_ORDER == LITTLE_ENDIAN
+  return __bswap_16 (x);
+#else
+# error "What kind of system is this?"
+#endif
 }
-strong_alias (__htons, __ntohs)
-weak_alias (__htons, htons)
-weak_alias (__ntohs, ntohs)
+weak_alias (htons, ntohs)